#3F7EBB#3F7EBB

#3F7EBB is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.115 H 249.8°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EBB
RGB	rgb(63, 126, 187)
HSL	hsl(210, 50%, 49%)
HSV	hsv(210, 66%, 73%)
CMYK	cmyk(66.3%, 32.6%, 0%, 26.7%)
CIE-LAB	lab(51.34, -0.62, -38.00)
CIE-LCH	lch(51.34, 38.00, 269.07°)
OKLab	oklab(57.95% -0.0396 -0.1075)
OKLCH	oklch(57.95% 0.115 249.8)
XYZ	xyz(18.4771, 19.5644, 49.8066)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EBB #BB7C3F

analogous

#3FBBBA #3F7EBB #3F40BB

triadic

#3F7EBB #BB3F7E #7EBB3F

tetradic

#3F7EBB #BA3FBB #BB7C3F #40BB3F

square

#3F7EBB #BA3FBB #BB7C3F #40BB3F

split-complementary

#3F7EBB #BB3F40 #BBBA3F

monochromatic

#20405F #305F8D #3F7EBB #6A9CCD #98BBDC

Accessibility & contrast

On white

4.27

#3F7EBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#3F7EBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EBB

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EBB	#FFFFFF	#000000	##000000
##3F7EBB	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6381BE

Deuteranopia (green-blind)

#5275BA

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7ebb;
/* rgb */ color: rgb(63, 126, 187);
/* oklch */ color: oklch(57.9% 0.115 249.8);

Tailwind

colors: {
  custom: {
    50: '#81a3d0',
    500: '#3f7ebb',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ebb;
$custom-light: #81a3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ebb",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 187
  },
  "hsl": {
    "h": 209.516,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57947,
    "c": 0.11462,
    "h": 249.8
  },
  "luminance": 0.19566
}

Semantic roles & 50–950 ramp

primary

#3F7EBB

secondary

#C8AA8E

accent

#934FD9

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7EBB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →